Rampant Optimism Just for Fun Our friend Zubr has painted a fairly realistic picture, I guess, of economic grades of copper and gold at upper levels being associated with a deeper iron core responsible for the high conductivity of the electric current being applied at nearby locations.
Could Guama be different? I am still mystified by (predominantly?) copper being found higher up in system than would be consistent with Romero. Not sure about erosion. Plate tectonics seem likely to me, the novice, to be a huge geological occurrence that the geologists would have picked up on at a glance. Precipitation of minerals occurs when suitable temperatures and pressures are encountered, and one would expect adjacent locations to have reasonably consistent environments. Example: the Andean Cordillera. So what gives?
What are the chances that the mineralised fluids that upthrust at Guama did so in a markedly different episode from those at Romero? What if the supposed hot spot associated with the Caribbean plate stalled at Romero for a few million years before resuming its northwest movement, at which time the conditions became markedly different i.e. the temperatures and pressures were actually greater at a given elevation than earlier, causing precipitation to occur at higher levels in the new system? How about the possibility of pressure being relieved through lateral flow, thus increasing the volume of deposition? How does gold deposition work in this environment?